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公开(公告)号：US10271323B2
公开(公告)日：2019-04-23
申请号：US15599260
申请日：2017-05-18
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianqin Liu , Kunpeng Liu , Qiang Wu , Jianghua Liu
Abstract: In a system and method of control channel transmission in the communications field, REs, except those used for transmitting a DMRS, are grouped in each physical resource block pair of L physical resource block pairs. The L physical resource block pairs are determined to be used to transmit a control channel into N eREGs. The number of valid REs are calculated except other overheads in each eREG of the N eREGs. Each of the eCCEs are mapped onto M eREGs according to the number of valid REs included in each eREG of the N eREGs of each physical resource block pair. The eCCE is sent in the REs included in the eREG.
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公开(公告)号：US10205497B2
公开(公告)日：2019-02-12
申请号：US15382206
申请日：2016-12-16
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kunpeng Liu , Leiming Zhang , Jianghua Liu
IPC: H04B7/04 , H04B7/06 , H04L1/06 , H04B7/0417 , H04B7/0456
Abstract: Embodiments of the present invention disclose a signal transmission method, a system, and a device. When measuring a reference signal and determining channel quality, UE obtains a difference between codeword to CSI-RS mapping relationships by using a channel quality measurement model, may calculate an optimized mapping relationship by means of measurement, and determines at least one mapping relationship from these mapping relationships, to adjust a codeword to CSI-RS mapping relationship of a channel, thereby improving system flexibility and increasing channel resource utilization.
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公开(公告)号：US20190020389A1
公开(公告)日：2019-01-17
申请号：US16125276
申请日：2018-09-07
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kunpeng Liu , Qiang Wu , Leiming Zhang
IPC: H04B7/0456 , H04B7/0417 , H04L5/00
CPC classification number: H04B7/0486 , H04B7/0417 , H04B7/06 , H04B7/0626 , H04L5/0026
Abstract: A transmit diversity method, a device, and a system are described herein. The method includes: measuring, by a second network device, channel state information based on a pilot signal, and sending rank index information and precoding matrix index information to a first network device based on the channel state information; receiving, by the first network device, the rank index information and the precoding matrix index information that are sent by the second network device; determining a diversity coding scheme based on the rank index information; determining a precoding matrix based on the precoding matrix index information; and performing transmission processing on to-be-transmitted data based on the diversity coding scheme and the precoding matrix.
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公开(公告)号：US10020856B2
公开(公告)日：2018-07-10
申请号：US15700909
申请日：2017-09-11
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kunpeng Liu , Leiming Zhang , Jianghua Liu
IPC: H04B7/04 , H04B7/0456 , H04B7/06
CPC classification number: H04B7/0456 , H04B7/04 , H04B7/0673 , H05K999/99
Abstract: A method and an apparatus for measuring and feeding back channel information are disclosed. In an embodiment the method includes receiving, by a first network device, a reference signal and measuring the reference signal to obtain a measurement result. The method further includes selecting a first codebook from a first codebook set according to the measurement result, wherein the first codebook set comprises at least two first codebooks, a sub-vector Wx of each first codebook is formed by a zero vector and a non-zero vector, wherein the vectors forming the Wx correspond to different groups of antenna ports, and sending a codebook index to a second network device, wherein the codebook index corresponds to the first codebook selected from the first codebook set.
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公开(公告)号：US20180191423A1
公开(公告)日：2018-07-05
申请号：US15909732
申请日：2018-03-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bingyu Qu , Jianqin Liu , Kunpeng Liu , Yongxing Zhou
CPC classification number: H04B7/12 , H04B7/0684 , H04B7/26 , H04L5/0048 , H04L5/0053 , H04L27/2614 , H04L27/2621 , H04L27/2636 , H04L27/3411
Abstract: A signal sending method includes: mapping, by a sending device, a first sequence onto M even-numbered subcarriers in 2M subcarriers, and mapping a second sequence onto M odd-numbered subcarriers in the 2M subcarriers, where the first sequence is one of a third sequence and a fourth sequence, the second sequence is the other of the third sequence and the fourth sequence, the 2M subcarriers are subcarriers on a same time domain symbol, and for elements of a second time domain sequence corresponding to the fourth sequence and a first time domain sequence corresponding to the third sequence at a same moment, when a complex factor is taken out, one of the first time domain sequence and the second time domain sequence is an in-phase component, and the other is a quadrature component; and transforming sequences mapped onto the 2M subcarriers to a time domain to generate transmit signals, and then sending the transmit signals.
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Patent Agency Ranking
公开(公告)号：US20180063779A1
公开(公告)日：2018-03-01
申请号：US15804182
申请日：2017-11-06
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kunpeng Liu , Yongxing Zhou , Leiming Zhang
CPC classification number: H04W48/20 , H04L5/0026 , H04L12/1881 , H04W16/28 , H04W48/10 , H04W48/12 , H04W72/005 , H04W74/08 , H04W74/0833
Abstract: Embodiments of the present invention provide a signal transmission method and a network device. The signal transmission method includes: sending, by a first network device, a first signal before performing cell selection; and sending, by the first network device, a second signal after performing cell selection, where resources used by the first network device to send the first signal and the second signal are different, and the second signal is a random access signal.
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公开(公告)号：US20180041949A1
公开(公告)日：2018-02-08
申请号：US15716763
申请日：2017-09-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kunpeng Liu , Yongxing Zhou , Leiming Zhang
Abstract: A wireless access method and apparatus, the method including sending N first signal sets on N first resources, where N is an integer greater than 1, receiving Z response signals from a terminal for the N first signal sets, where each response signal of the response signals comprises indication information of a resource on which the respective first signal set of the N first signal sets is located, Z is an integer greater than or equal to 1, and Z is less than or equal to N, and sending M second signal sets on M second resources according to the Z response signals, where M is an integer greater than or equal to 1, and each second signal set of the M second signal sets corresponds to at least one of the N first signal sets.
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公开(公告)号：US09756625B2
公开(公告)日：2017-09-05
申请号：US14611837
申请日：2015-02-02
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kunpeng Liu , Chi Gao , Jianghua Liu , Jianqin Liu
CPC classification number: H04W72/042 , H04L5/0007 , H04L5/0053 , H04W72/04
Abstract: This application provides an enhanced physical downlink control channel transmission method and apparatus. The method includes: in a physical resource block set, separately arranging first resource groups in each physical resource block pair PRB pair, where the first resource groups are resource element groups eREGs or REGs, and the physical resource block set includes at least one of the physical resource block pairs; numbering second resource groups according to a correspondence between the first resource groups and the second resource groups in the physical resource block set, where the second resource groups are control channel element eCCE groups or control channel candidates; determining numbers of the second resource groups for transmitting an E-PDCCH; and mapping, according to the determined numbers, the E-PDCCH to the corresponding first resource groups for transmission. The technical solution of this application resolves an E-PDCCH transmission problem.
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29.发明授权公开(公告)号：US09706542B2
公开(公告)日：2017-07-11
申请号：US15211686
申请日：2016-07-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kunpeng Liu , Chaojun Li , Qiang Wu
CPC classification number: H04W72/042 , H04L5/0048 , H04L5/0053 , H04W72/0453
Abstract: Embodiments of the present invention provide methods for transmitting and receiving a control channel, a base station, and a user equipment, which relate to the communication field, and can solve a transmission problem of available changing transmission resources caused by introduction of an E-PDCCH. A method for configuring a control channel resource includes: determining, by a base station according to a system configuration and/or user configuration, resource elements REs included in an extended control channel element E-CCE, and transmitting an extended physical downlink control channel E-PDCCH to a user equipment, where the E-PDCCH is carried by the E-CCE; and receiving, by the user equipment, the E-PDCCH, and obtaining the REs included in the E-CCE, and receiving, over the REs included in the E-CCE, the E-PDCCH transmitted by the base station. The embodiments of the present invention are used for configuring and detecting a control channel resource.
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公开(公告)号：US09526117B2
公开(公告)日：2016-12-20
申请号：US14466037
申请日：2014-08-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kunpeng Liu , Jianghua Liu
CPC classification number: H04W74/0833 , H04W72/0406 , H04W72/14 , H04W74/0866
Abstract: Embodiments of the present invention provide a method and a device for processing random access. The method includes: detecting a random access preamble sequence which is sent by a user equipment (UE) according to configuration information; determining a control channel corresponding to the detected random access preamble sequence, and scheduling random access response information corresponding to the random access preamble sequence by using the control channel.
Abstract translation: 本发明的实施例提供了一种用于处理随机存取的方法和装置。 该方法包括：根据配置信息检测用户设备（UE）发送的随机接入前导序列; 确定与检测到的随机接入前导序列相对应的控制信道，并且通过使用控制信道调度与随机接入前同步码序列相对应的随机接入响应信息。
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